{"data":{"id":"f8dc0dc7-8b74-4419-ae58-c474bc8557f1","title":"Claude Fable 5 Doesn't Change the Mythos Security Story","summary":"Anthropic released Fable 5, which is an upgraded version of their earlier Mythos Preview model designed to be safer for general use. The update improves upon the previous version while maintaining focus on security and responsible deployment.","solution":"N/A -- no mitigation discussed in source.","labels":["safety"],"sourceUrl":"https://www.darkreading.com/vulnerabilities-threats/claude-fable-5-doesnt-change-mythos-security-story","publishedAt":"2026-06-12T13:01:00.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":[],"issueType":"news","affectedPackages":null,"affectedVendors":["Anthropic"],"affectedVendorsRaw":["Anthropic","Claude","Mythos"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"patchAvailable":null,"disclosureDate":"2026-06-12T13:01:00.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":["safety"],"aiComponentTargeted":"model","llmSpecific":true,"classifierConfidence":0.72,"researchCategory":null,"atlasIds":null}}